Paper bottle and the like.



W. L. WRIGHI.

PAPER BOTTLE AND THE LIKE.

APPLICATION FILED NOV. I, 1915- Patented Jan. 1, 1918.

' UNITED STATES PATENT OFFICE. WILBUB L. WRIGHT, 0! BALTIIEORE, MARYLAND, ASSIGNOR T0 SEABBIGHT 00., INCL, OF FULTON, NEW YORK, A CORP ORATION OF NEW YORK.

PAPER BOTTLE AND THE LIKE.

ments in paper bottles and the like; and the objects and nature of my invention will be readily understood by those skilled in the art in the light of the following explanation of the accompanying drawing illustrating what I now believe to be the preferred mechanical expression or embodiment of my invention from among other formations and constructions within the spirit and scope thereof.

An object of the invention is to provide a I c paper milk bottle of the truncated cone type and of a size to fit both the top and bottom sockets or openings of the common standard milk bottle wagon cases and of a length to fit such cases and not interfere with the proper nesting thereof and at the same time to have a capacity rating equal to that of the approximately cylindrical glass milk bottles of commerce of a standard capacity and that will also have a mouth formed to properly receive the rubber nose pieces of standard filling machines designed to fill standard milk bottles to full capacity without undue frothing; and that also can have a sealing seat of standard size to receive the milk bottle sealing disks of commerce.

A further object of the invention is to provide a paper milk bottle approximately a standard size and capacity and having a reinforced or stifi'ened neck or'mouth portion and to increase'the diameter of the paper wall at the upper end of bottle so that the diameter of the lower end of the bottle can be kept within certain bounds and so that the vertical length of the bottle can be tle with maximum internal diameter at its upper end and to form a support or seat for a top ring or closure that can have a d1s- Specification of Letters Patent.

Patented Jan. 1,1918.

Application filed November 1, 1916. Serial No. 128,980.

charge and filling opening or mouth of standard size.

A further object of the invention is to provide certain improvements in paper milk 7 bottles of the neck or mouth ring type.

The invention consists in certain novel features, in construction and in combination and arrangements as more fully and particularly set forth and specified hereinafter.

Referring to the accompanying drawings:

Figure 1, is an elevation partially in longitudinal section of a bottle constructed in accordance with my invention.

Fig. 2, is a longitudinal section of the upper portion of the bottle, the center of the metal top being removed, and a standard sealing disk being shown in position closing the bottle.

Fig. 3, is a longitudinal section of the top portion of a bottle showing a modified con struction.

In the drawings, I show a paper bottle of truncated cone form, the paper body'wall 1 of which tapers orreduces upwardly from the-bottom of the bottle to the upper end or mouth portion thereof. This bottle is provided with any suitable bottom closure which I do not deem it necessary to illustrate as the particular bottom closure employed forms no part of my present invention.

The tapered wall 1 of the body is preferably formed by rolling a suitable fiat paper blank on a proper mandrel and cementing the overlapping ends or edges of the blank to form a permanent fiat seam extending longitudinally of the bottle. It is in accord ance with my invention to form the upper end of this paper wall with an annular bead or enlargement 2 of substantial radial width and arranged approximately within the outside circle or diameter of the upper end of the wall. I accomplish this result, usually, by rolling or turning the top edge portion of the paper blank inwardly and downwardly as the blank is wound on the mandrel in the formation of the tapered body, so that the wall of the body surrounds this bead or,top enlargement 2.

In the particular example illustrated, the paper is turned inwardly'and downwardly to form a closed roll or hollow bead bulging slightly at the exterior of the bottle month to form exterior annular depression or indentation. 3, and providing the wall with a rounded top edge having a central opening substantially reduced in diameter with respect to the exterior diameter of the upper end of the bottle. The truncated paper cone thus formed, can then be paraflined to stiffen the paper wall and top rolled mouth portion' and render the form thereof permanent. The rolled top edge as thus formed is of the proper curvature and dimensions to accurately fit the standard rubber nose piece of a milk bottle filling machine and permit the;

center of the rolled paper edge and in Fig. l,

is shown formed with its center closed by imperforate portion 6 thus forming a tight closure for the milk bottle. In order to open the bottle thus sealed by the imperforate metal cap 4., 5, 6, itis usually necessary to cut or sever the paper wall immediately below the edge 5 or otherwise tear the metal cap from the paper so as to mutilate the bottle and render the same useless for refilling.

I preferably so form the dies employed to strike up the sheet metal cap 4, 5, 6, as to form the same with a depressed central portion joined to an approximately fiat annular portion 7 by a downturned annular portion 8. I can hence easily operate the dies to cut out the central depressed portion within the down turned portion 8, to form an open center ring where desired. Such an open center ring is shown in Figs. 2 and 3. In such ring, the portion 7, forms the seat for a common paper sealing disk 10 of commerce while the central annular wall 11 of the ring forms a throat of standard size to receive a sealing disk 10 of standard size. The inner edge 8 of the sealing seat is thus turned down to prevent injury to and mutilation of the rubber gaskets of the machines used for filling the bottles.

The bottle of Fig. 2 has its paper wall formed with the comparatively large inturned roll which is paraffined as hereinbefore described, and the top ring is applied and secured by bending its edge 5, inwardly as hereinbefore described. The bottle of Fig. 2, is then ready for filling, and after filling the sealing disk 10, is applied by machinery or by hand as preferred.

In the construction disclosed by Fig. 3, a binder or binding ring 12 is bent or otherwise secured on the rolled top edge 2 of the paper wall of the bottle to hold and render the sheet metal ring. This binder can be composed of paper material paraffined to stiffen the same or can be composed of thin sheet metal.

In the various forms shown, the bottle is provided with a mouth or throat portion having internal dimensions of standard size to receive sealing disks of standard size, and the mouth and upper end of the bottle is otherwise formed to accommodate and be operated on by milk bottle machinery of standard size. However, it will be noted that the. rolled top edge of the paper wall is of substantial radial width; that there is a substantial difference between its greatest external and internal diameters, and that this roll is within the external wall of the the roll permanent before the application of bottle. I thus provide a paper bottle having a throat or internal diameter at its mouth of standard size, yet the internal diameter of the, upper end of the bottle im- 'throat. I am thus enabled to very substantially increase the internal diameter (or capacity) of the upper ends of paper milk bottles of the truncated cone type which enables me to decrease the diameter of the lower end thereof and somewhat shorten the vertical length of the bottle without decreasing the capacity of the bottle itself. other words, I produce a truncated cone paper bottle of a standard or rated capacity and yet one of such dimensions that it can be handled by standard filling and capping machinery and will receive standard seating or capping disks, and can be packed and transported in the standard milk bottle crates or wagon cases commonly used for glass milk bottles. Heretofore, truncated cone paper milk bottles of standard ratnd capacities have been too large at their bases to enter the bottom openings or sockets of said crates or cases and have been so long vertically as to prevent nesting or piling of said cases or crates on each other, when containing said paper bottles, without crushing olr damaging the projecting tops of such bott es.

By thus enlarging the upper end of my truncated cone paper bottle I can reduce the lower end thereof and shorten the bottle without decreasing the total capacity thereof, and bring the bottle within standard dimensions of the glass milk bottles.

Various modifications and departures can be resorted to without departing from the spirit and scope of my invention and hence I do not wish to limit myself to the exact disclosures hereof.

What I claim is 1. A thin-wall paper milk bottle of truncated cone shape having a standard rated capacity, the diameter of .the large lower Inv end and the vertical length of said bottle being approximately equal to the lower end diameter and the vertical length of a standard glass milk bottle of like rated capacity, said bottle at its small upper end having an internal disk seat of a diameter to receive a standard size milk-bottle sealing disk, the upper end of said bottle having a permanent roll within the surrounding wall of the bottle formed by rolling the top edge of the paper wall inwardly and downwardly, and a metal rim approximately inclosing said roll and permanently fixed thereto and extending down within the contracted space within said roll and at its inner portion forming said seat, substantially as described.

2. A thin-wall paper milk bottle of truncated cone shape having a standard rated capacity, the diameter of the large lower end and the vertical length of said bottle being approximately equal to the lower end diameter and the vertical length of a standard glass milk bottle of like rated capacity, said bottle at its small upper end havlng an exterior rounded permanent mouth of approximately standard glass milk bottle dimensions and forming an exterior projecting rim, the upper end of said bottle having a permanent annular ri 'd non-elastic roll within and surrounded y the upwardly extending paper Wall of the bottle and formed by the inwardly and downwardly rolled top edge of said Wall stiffened by paraiiin or the like, and a permanent metal rim formed to embrace said edge and to be pinched thereon against removal therefrom Without severing the thin paper wall below said roll, the internal diameter of said bottle being enlarged immediately below said roll, substantially as described.

3. A truncated-cone paper bottle having the top edge of its paper wall rolled in- Wardly and downwardly and forming a rigid top supporting rim Within and surrounded by the'exterior Wall of the bottle and an annular external indentation, and a metal rim fitted down over said rim and depending at the inner and outer faces thereof and having its outer edge turned into said indentation and permanently securing the metal rim on the paper rim, the inner depending portion of said rim forming the throat and sealing seat of the bottle.

WILBUR L. WRIGHT. 

